12661028 has 12 divisors (see below), whose sum is σ = 22281840. Its totient is φ = 6294792.

The previous prime is 12661027. The next prime is 12661031. The reversal of 12661028 is 82016621.

It is a junction number, because it is equal to n+sod(n) for n = 12660988 and 12661006.

It is not an unprimeable number, because it can be changed into a prime (12661021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8126 + ... + 9557.

It is an arithmetic number, because the mean of its divisors is an integer number (1856820).

Almost surely, 2^12661028 is an apocalyptic number.

It is an amenable number.

12661028 is a deficient number, since it is larger than the sum of its proper divisors (9620812).

12661028 is a wasteful number, since it uses less digits than its factorization.

12661028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17866 (or 17864 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 12661028 is about 3558.2338315518. The cubic root of 12661028 is about 233.0717603940.

Adding to 12661028 its reverse (82016621), we get a palindrome (94677649).

The spelling of 12661028 in words is "twelve million, six hundred sixty-one thousand, twenty-eight".